34W 6.8 Amp 4-Port Compact Rapid USB Home Wall Charger with Smart Detect Compatible with AT&T Samsung Galaxy S2 Skyrocket Cell Phones. Fonus(TM) 34W 6.8 Amp 4-Port Compact Rapid USB Home Wall Charger with Smart Detect is the latest design from our Smart Detect product line up. Equipped with the latest iSmart technology, the Fonus wall charger offers blazing fast charging for devices. Simply plug in and the charger will automatically figure out what voltage to offer. As powerful as it can be, the charger is also loaded with all the necessary features to give you a 100% safe charging experience: durable casing to protect damages from outside, high temperature, high current and voltage surge protection to guard internal circuit. CB/ETL/FCC/CE Certified. Ultra Compact: Small and light enough to carry out use as a replacement (2"x1.2"x1.2") - Weighs 4.2oz. NO USB Cable is included.